linux-kernel - Re: [PATCH 2.6.21-rc1] Extend print

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Date:	Mon, 5 Mar 2007 17:37:56 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Robert Peterson <rpeterso@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2.6.21-rc1] Extend print_symbol capability TRY #2

On Mon, 05 Mar 2007 18:03:59 -0600 Robert Peterson wrote:

> This is try #2 for this patch, with corrections based on feedback. 
> It is the same as the previous patch except:
> (1) The function has been renamed from lookup_symbol to sprint_symbol
>     as requested by Paulo Marques.
> (2) I fixed the "return NULL;" to "return;" as pointed out by Paulo Marques
>     for the case where the kallsyms function is not selected in .config
> (3) I changed EXPORT_SYMBOL to EXPORT_SYMBOL_GPL as
>     requested by Roman Zippel. (Andrew, I thought you said you changed this,
>     but I didn't see it in mm1).
> 
> I hope this patch attaches with proper spacing and without word wrap.
> If it doesn't, my apologies (I'm using Thunderbird, but suggestions 
> welcome).
> 
> Original comment:
> 
> Today's print_symbol function dumps a kernel symbol with printk.
> This patch extends the functionality of kallsyms.c so that the symbol
> lookup function may be used without the printk.  This is
> useful for modules that want to dump symbols elsewhere, for
> example, to debugfs.  I intend to use the new function call in the
> GFS2 file system (which will be a separate patch).
> 
> Signed-off-by: Robert Peterson <rpeterso@...hat.com>
> ---

argh, attachment, harder to review/comment on....

I had commented on this comment, but you seem to have missed it.

+/* Replace "%s" in format with address, or returns -errno. */
+void __print_symbol(const char *fmt, unsigned long address)
+{

This function does not "returns -errno" at all.

---
~Randy

using tbird for inline patches:
http://mbligh.org/linuxdocs/Email/Clients/Thunderbird
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